Lister-cultivator.



no. 7|5,s37. Patented nec. 9` |902.

c. A. Bnosnnm.

LISTEB CULTIVATUR.

. (Application iled'Sspt. 22, 1902.) I (No Model.) ZSheets-Sheet LPatented Dec. 9, |902.

c. A; Bosmom.

LISTER CULTIVATOR. (Appliuatim filed sept. 22, 1002.)

.2 Sheath-Sheet 2.

(No Model.

Calif/752066407@ YHz Nonms Farias w.. Pnonurno.. wAsmNcTuu. n c.

'A ATnNT Ormes.

CARL A. BROSTROM, OF SIOUX CITY, IOWA, ASSIGNOR TO CHARLES L. BROSTROM,OF KANSAS CITY, MISSOURI.

LISTER-CULTIVATOR.

SPECIFICATION forming part of Letters Patent No. 715,637, dated December9, 1902.

Application iiled September 22, 1902. 'Serial No. 124,391. (No model.)

To @ZZ whom t may concern:

Be it known that I, CARL A. BROSTROM, a citizen of the United States,residing at Sioux City, in thecounty of Woodbury and State of able, sothat two parallel rows of growing.

plants can be cultivated simultaneously.

Furthermore, the invention aims to construct a lister-cultivator whichshall be more compact than cultivators of this character now in generaluse, strong, durable, efficient in its operation, constructed ofcomparatively few parts and comparatively inexpensive tov set up and tothis end the invention consists of the novel combination and arrangementof parts hereinafter more specically described, illustrated in theaccompanying drawings, and particularly pointed out in the claimshereunto appended.

In describing the invention in detail reference is had to theaccompanying drawings, forming a part of this specification, whereinlike numerals of reference indicate corresponding parts throughout theseveral views, and in Which- Figure 1 is a plan view of alister-cultivator embodying my improvements. Fig. 2 is a longitudinalsectional view through the shaft carrying the cultivating-disks, andFig. 3 is a detail of the bearing-block for the disks, the block beingmounted upon the disk-carrrying shaft.

Referring to the drawings by reference characters, 1 denotes the frameof the machine, which is constructed of bars of suitablematerial andsubstantially rectangular in contour. The frame 1 is divided by thepartition-bar 2, to which the tongue 3 is adapted to be suitablyconnected and to which is also connected the seat-post or supportingbar4t, the latter extending rearwardly of the machine. The seat-post orsupporting-bar et is supported by means of a caster-wheel 5,

vator when upon the seat v5.

and at their other end to the tongue, as shown.

Extendinglongitudinally of the frame 1 the entire length thereof andfixed from movement in the side bars of the frame, as well as thepartition-bar 2, is a cultivator-disk-supporting shaft S. Extendingrearwardly of the frame 1 and connected to the rear bar of the frame bymeans of the bearing-brackets 9 and segmental bearing-racks 9 is a pairof rock-shafts 10, one of which is arranged at each side of the bar 4and seat 5. The shafts 10 project outwardly from one side of each of thesegmental bearing-racks 9' and have connected to the said projectingends an elevating-lever 1l, the latter being in such position so it canbe engaged and moved by the oper- The elevatinglevers 11 each carry alever-rod and pawl connection, the pawls adapted to engage in the racks9 for retaining the elevating-lever in its set position when the shafts10 are rocked. The shafts 10 are adapted to support thecultivator-frames, which are each constructed of two beams 12, connectedat their forward ends to the sides of the bearing-blocks 13 and rigidlysecured together by the cross-bars 14: 15. Each of the bearingblocks isconstructed of a rectangular piece of suitable material, having itsforward end constructed in a cylindrical manner, as at 16, thiscylindrical portion being bored, as at 17, so as to permit of looselymounting the bearing-block upon the shaft 8. The top of the cylindricalportion 16 is formed integral with a vertically-extending arm 18,provided with a series of openings throughout its length, as at 20. v.

The reference characters 21 22 denote the disk-adjusting arms. Each ofthese arms is constructed of a rectangular strip of suitable ICO orrecesses 2O in the vertical arrn 18, so that the arms 21 22 can beadjustably secured to the arm 18 by means of the bolts 26.

The reference character 27 denotes the inner disk, and the referencecharacter 28 denotes the outer disk. These disks are constructed in aconcavo-convex manner and are each provided with a hub 29, the innerportion of which is formed with an annular groove 80, in which is seatedthe yoke 24 of its respective adjusting-arm. The disks 27 28 are looselymounted upon the shaft 8, and, as before stated,the bearing-block 18 isloosely mounted on the shaft 8, so that the block 13 and disks 27 28will be laterally and bodily movable upon the shaft 8.

It will be evident that by the employment of the adjusting-arms 2l 22each pair of disks 27 28 can be adjusted to the proper width desired,and at the same time the disk and bearing-block will be laterally andbodily movable upon the shaft 8, thus overcoming the lateral movement ofthe shaft 8 and permitting two parallel rows of growing plants to becultivated simultaneously. It will also be evident that thecultivatorframes will also be laterally movable, owing to theirconnection with the bearing-blocks l-that is to say, laterally movableupon the shaft 8. It will I furthermore be evident that thecultivatorframes can be adjusted vertically to the position desired bymeans of the elevating-levers l1.Thecultivator-frameshavesuitablyconnected thereto the disk cultivators31 and the fenders 32.

It is thought the many advantages of a lister-cultivator constructed inaccordance with the foregoing description, taken in connection with theaccompanying drawings, can be readily understood, particularly theadvantage of building compactly a lister-cultivator for cultivating twoparallel rows of growing plants simultaneously by reason of the factthat the shaft upon which the cultivatordisks are mounted has no lateralmovement, the disks being laterally movable and adjustable upon thedisk-carrying shaft instead of the latter being laterally movable. Sucha construction, it is obvious, will lessen the cost of setting up themachine, and, as before stated, makes it possible to cultivate twoparallel rows of growing plants instead of every alternate row, as isdone with the machines now generally employed, and it will also beevident that I have devised a simple, inexpensive, and novelconstruction of lister-cultivator. It will, furthermore, be evident thatchanges, variations, and modifications may be resorted to withoutdeparting from the spirit of the invention or sacrificing any of itsadvantages, and I therefore do not wish to restrict myself to thedetails of construction herenbefore described and as shown in the accompanying drawings,but reserve the right to make such changes, variations,and modifications as come properly within the scope of the protectionprayed.

I-Iaving thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. An agricultural implement comprising a fixed shaft, and a pair ofcultivator-disks laterally adjustable, loosely mounted and laterallymovable upon said shaft.

2. A lister-cultivator comprising a pair of cultivator-disks, andsupporting means therefor, said disks laterally adjustable upon,laterally movable upon, loosely mounted upon, and rotatable upon saidsupporting means.

3. In an agricultural implement, a shaft, a frame for supporting saidshaft, a cultivatorframe, a pair of cultivator-disks, and connectionsbetween the said disks and cultivatorframe, said connections beingloosely mounted upon the said shaft so as to permit of the saidconnections, disks and cultivator-frame to be bodily movable laterallyupon said shaft.

4. In a lister-cultivator, a frame, a shaft, cultivator-disks looselymounted upon said shaft, and adjustable means for said disks suitablyconnected thereto, said adjusting means loosely mounted upon said shaft,said disk and adjusting means capable of lateral movement upon saidshaft.

5. In a lister-cultivator, a frame, a shaft fixed therein, abearing-block loosely supported upon said shaft, a pair of adjustingarmscarried by said block, and disks loosely mounted upon said shaft andadapted t0 be connected to said adjusting-arms, said block, arms anddisk adapted to be bodily movable laterally upon said shaft.

6. In an agricultural implement, a frame, a fixed shaft supportedthereby, a cultivatorframe loosely connected with the shaft and capableof lateral movement upon the shaft, and laterally movable and adjustabledisks loosely mounted upon said fixed shaft.

7. In an agricultural implement, laterally movable and adjustablecultivator-disks, a laterally-movable cultivator-frame, and suitableconnections between said cultivatorframe and disks.

8. In an agricultural implement, the combination with the frame and ashaft fixed therein, of cultivator-disks loosely mounted upon said shaftand provided with grooved hubs, and means carried by the shaft andengaging in the grooves of the hubs for adjusting the position of saiddisks.

9. A lister-cultivator, comprising a frame, a shaft fixed therein, abearing-block loosely mounted on said shaft, adjusting-arms carried bysaid block, cultivator-disks loosely mounted upon said shaft and adaptedto be engaged and adjusted by the said arms, a cultivator-frameconnected to said block, said cultivator-frame, block, arms and diskscapable of being laterally movable bodily upon said shaft, a seatsupported from said frame, a caster-wheel for supporting the seat, andmeans for vertically adjusting said cultivator-frame independently ofthe said disks.

10. In a lister-cultivator, a frame, a shaft IIO IZO

mounted therein, a bearingblock loosely mounted upon said shaft andprovided with a vertically-extending arm, adj listing-arms suitablyconnected to said vertical arm and each provided with a yoke, andcultivatordisks loosely mounted upon said shaft and adapted to beengaged by the said yokes for adjustably connecting the disks tothe saidblock, said block, arms and disks capable of lateral movement bodilyupon the said shaft. 11. In a lister-cultivator, a frame, a shaftmounted therein, a bearing block loosely mounted upon said shaft andprovided with a vertically-extending arm, adjusting-arms suitablyconnected' tosaid vertical arm and each provided with a yoke,cultivator-disks loosely mounted upon said shaft and adapted to beengaged by the said yokes for adjustably connecting the disks to thesaid block, and a vertically-adjustable cultivator-frame connected tothe said block, said cultivatorframe, block, arms and disks capable oflateral movement bodily upon the said shaft.

l2. In an agricultural implement, a frame, a shaft tixedly connectedthereto, cultivatordisks loosely mounted upon said shaft, acultivator-frame, and means loosely mounted upon the said shaft andadapted to connect the said cultivator-frame with said disks, said meanslaterally movable upon said shaft.

13. In an agricultural implement, a vertically-adjustable and alaterally-movable cultivator-frame, rotatable cultivator-disks suitablyconnected With said frame, and a fixed support for the said disks, saiddisks being laterally movable and laterally adjustable -upon said ixedsupport.

14. In an agricultural implement, a frame, a fixed shaft carriedthereby, and a vertically adjustable cultivator frame loosely mountedupon said fixed shaft, said cultivator-frame being laterally movableupon said fixed shaft.

15. In a lister-cultivator, a frame, a shaft fixed therein, and a pairof laterally-movable concavo-convex disks loosely mounted upon saidshaft and adj ustably connected together.

16. In a lister-cultivator, a frame, a shaft suitably mounted therein, apair of disks loosely mounted upon said shaft, and means for adjustablyconnecting the disks together.

17. In an agricultural implement, laterallymovable and laterallyadjustable ground- Working devices, and a fixed support for saiddevices, said devices rotatable upon said fixed support.

18. In an agricultural implement, a laterally-movable cultiVator-frame,laterally-movable and laterally-adj ustable ground-Working devicessuitably connected with said cultivator-frame, and a fixed' support forsaid devices, said devices rotatable upon said fixed support.

In testimony whereof I have hereunto set my hand in presence of twosubscribing Witnesses.

CARL A. BROSTROM.

Witnesses:

C. W. TAYLOR, GRANT J. Ross.

